试题 试卷
题型：单选题 题类：常考题 难易度：普通
（新版）人教新目标版七年级下册 Unit 2 What time doyou go to school Section B同步测试
—Sure.
Cao Cao once wanted to know the {#blank#}1{#/blank#} of an elephant. His son Cao Chong came up with an idea. He asked people to lead the elephant onto a boat on a river and marked the water level. Then they took the elephant's place with rocks when the river water reached the same level. Finally, they {#blank#}2{#/blank#} all the rocks, so they knew how much the elephant could{#blank#}3{#/blank#} . How smart Cao Chong was!
试题篮
